We could replace people with fossil fuels, have higher and higher levels of industrialization, of agriculture, of production, without thinking of the green-house gases we were admitting, and climate change is really the pollution of the engineering paradigm, when fossil fuels drove industrialism. To now offer that same mindset as a solution is to not take seriously what Einstein said: that you can't solve the problems by using the same mindset that caused them.

We have to build movements in the face of trade retaliation on the basis of people's democratic rights, on the basis of an ancient heritage of collective innovation. We work from the grassroots all the way to the national government and the World Trade Organization. It basically means being very multidimensional in our campaigns. And that is where part of the fun is. It involves both resistance and creativity. It involves constructive action, while at the same time saying "no."

My personal background is actually very unusual for the kind of career I chose. I didn’t meet anyone who had ever done physics in my life. I grew up in the Himalayan forests. My father was a forest conservator, which meant that if I wasn’t in school I was in the forests with him. That has been very largely responsible for my ecological inclinations.

We must occupy the food system to create food democracy.

In England, the population explosion can be linked very clearly with the enclosure of the commons that uprooted the peasants from their land. In India, it was the same thing: the population increased at the end of the 18th century when the British took over and Indian lands were colonized. Instead of the land feeding Indian people it started to feed the British empire. So we had destitution. Destitute people who don't have their own land to feed themselves can only feed themselves by having larger numbers, therefore they multiply. It's the rational response of a dispossessed people.

When I find too many puzzles about the way explanations are given about why there is inequality - why people who work the hardest in the world end up being the poorest - I can't just sit back and not try to understand why the gaps between people are increasing, or why there are so many homeless and hungry people in the world.

You cannot insert a gene you took from a bacteria into a seed and call it LIFE. You have not created life, instead you have only polluted it.